| Abstract Detail
Translational Genomics - Morning Lima Silva, Viviana [1], Granel, Antonio [2], Valpuesta Fernandez, Victoriano [3], Botella Mesa, Miguel Angel [3]. Vitamin C profiling of a RIL population generated from an inter-specific cross between Solanum lycopersicum x Solanum pimpinellifolium and analysis of vitamin C biosynthesis genes in selected lines. TOMATO species constitute one of the most popular and extensively consumed vegetable crops in the world and represent important dietary sources of nutrients, vitamins and antioxidants. Vitamin C (L-ascorbic acid) is an essential component of human diet whose most vital role is as a primary water-soluble antioxidant acting as a radical scavenger. Several vitamin C biosynthesis pathways in plants have been described in recent years (Valpuesta and Botella, 2004). In order to identify the genes that are determinants for vitamin C content in tomato fruits we are using a RIL population generated from an inter-specific cross between Solanum Lycopersicum x Solanum pimpinellifolium. In addition to the difference in Vitamin C content between the two species we have found important differences in vitamin C content in individuals of the RIL indicating that vitamin C content in tomato fruit is a segregating character. We have identified in the SOL Genomic Network Database tomato genes that are involved in the biosynthesis of vitamin C and their expression is being analyzed in the lines showing extreme values of vitamin C content. References: Valpuesta V and Botella MA. Biosynthesis of L-ascorbic acid in plants: new pathways for an old antioxidant. TRENDS in Plant Science (2004) 9(12): 573 – 577.
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1 - Universidad de Malaga, Biología Molecular y Bioquímica, C/Cervantes Nº9, 9º D, Malaga, Malaga, 29016, Spain
2 - Consejo Superior de Investigaciones Científicas, Instituto de Biolgia Molecular y Celular de Plantas, Universidad Politecnica de Valencia, Avda Tarongers s/n, Valencia, V alencia, 46022, Spain
3 - Universidad de Malaga, Biología Molecular y Bioquímica, Edificio I + D, 3ª planta. Campus te Teatinos s/nº, Malaga, Malaga, 29071, Spain
Keywords:
L-ascorbic acid
Solanum lycopersicum
Solanum species.
Session: SAT05-7
Location: Hall of Ideas Room I/Monona Terrace
Date: Wednesday, July 26th, 2006
Time: 10:35 AM
Abstract ID:174 |
